HK1119824A1 - Apparatus and method for generating audio subband values and apparatus and method for generating time-domain audio samples - Google Patents
Apparatus and method for generating audio subband values and apparatus and method for generating time-domain audio samplesInfo
- Publication number
- HK1119824A1 HK1119824A1 HK08112967.6A HK08112967A HK1119824A1 HK 1119824 A1 HK1119824 A1 HK 1119824A1 HK 08112967 A HK08112967 A HK 08112967A HK 1119824 A1 HK1119824 A1 HK 1119824A1
- Authority
- HK
- Hong Kong
- Prior art keywords
- generating
- subband values
- audio
- audio samples
- domain audio
- Prior art date
Links
Classifications
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
- G10L19/022—Blocking, i.e. grouping of samples in time; Choice of analysis windows; Overlap factoring
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
- G10L19/0204—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/45—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of analysis window
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H17/00—Networks using digital techniques
- H03H17/02—Frequency selective networks
- H03H17/0248—Filters characterised by a particular frequency response or filtering method
- H03H17/0264—Filter sets with mutual related characteristics
- H03H17/0266—Filter banks
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Computational Linguistics (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Computer Hardware Design (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Liquid Crystal Substances (AREA)
- Tires In General (AREA)
- External Artificial Organs (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
- Developing Agents For Electrophotography (AREA)
- Peptides Or Proteins (AREA)
- Materials For Photolithography (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US86295406P | 2006-10-25 | 2006-10-25 | |
PCT/EP2007/009200 WO2008049590A1 (en) | 2006-10-25 | 2007-10-23 | Apparatus and method for generating audio subband values and apparatus and method for generating time-domain audio samples |
Publications (1)
Publication Number | Publication Date |
---|---|
HK1119824A1 true HK1119824A1 (en) | 2009-03-13 |
Family
ID=39048961
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK08112967.6A HK1119824A1 (en) | 2006-10-25 | 2008-11-27 | Apparatus and method for generating audio subband values and apparatus and method for generating time-domain audio samples |
HK18110291.5A HK1251073A1 (zh) | 2006-10-25 | 2018-08-10 | 用於產生音訊子帶值的裝置與方法以及用於產生時域音訊採樣的裝置和方法 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK18110291.5A HK1251073A1 (zh) | 2006-10-25 | 2018-08-10 | 用於產生音訊子帶值的裝置與方法以及用於產生時域音訊採樣的裝置和方法 |
Country Status (26)
Country | Link |
---|---|
US (12) | US8438015B2 (no) |
EP (10) | EP2109098B1 (no) |
JP (2) | JP4936569B2 (no) |
KR (2) | KR100957711B1 (no) |
CN (2) | CN101606194B (no) |
AR (2) | AR063400A1 (no) |
AT (1) | ATE435480T1 (no) |
AU (2) | AU2007308415B2 (no) |
BR (2) | BRPI0709310B1 (no) |
CA (2) | CA2667505C (no) |
DE (1) | DE602007001460D1 (no) |
DK (2) | DK1994530T3 (no) |
ES (6) | ES2966657T3 (no) |
FI (1) | FI3848928T3 (no) |
HK (2) | HK1119824A1 (no) |
HU (1) | HUE064482T2 (no) |
IL (2) | IL193786A (no) |
MX (2) | MX2008011898A (no) |
MY (2) | MY142520A (no) |
NO (3) | NO341567B1 (no) |
PL (6) | PL2076901T3 (no) |
PT (5) | PT3288027T (no) |
RU (2) | RU2420815C2 (no) |
TW (2) | TWI355649B (no) |
WO (2) | WO2008049589A1 (no) |
ZA (2) | ZA200810308B (no) |
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USRE50158E1 (en) | 2006-10-25 | 2024-10-01 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for generating audio subband values and apparatus and method for generating time-domain audio samples |
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ATE500588T1 (de) * | 2008-01-04 | 2011-03-15 | Dolby Sweden Ab | Audiokodierer und -dekodierer |
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US8737638B2 (en) * | 2008-07-30 | 2014-05-27 | Yamaha Corporation | Audio signal processing device, audio signal processing system, and audio signal processing method |
US9384748B2 (en) * | 2008-11-26 | 2016-07-05 | Electronics And Telecommunications Research Institute | Unified Speech/Audio Codec (USAC) processing windows sequence based mode switching |
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